I like to think that Arbok's hood patterns are influenced by their environment. When they evolve, they can take on the markings of their parent, or maybe they take after the trainer who raised them (who may or may not have an intimidating look to them)
The most beautiful part of @yamujiburo hanamusa's lore for me is Ash's emotional evolution and acceptance. For a character that surprisingly did not evolve much in its own journey (in a show full of evolutions) and made the same mistakes year after year, this proximity with Jessie is my most expected part of this story
They proceeded to get away with it and sweep the competition but then Ash felt bad and decided to give the prize money and title to the second place winners. They quickly ran away with no one knowing who they really were.